Fernandes Stumm, E.M. et al. 2011. Farmers’ conceptions on the use of agrochemicals. Revista de Enfermagem UFPE on line. 5, 8 (set. 2011), 1931–1940. DOI:https://doi.org/10.5205/reuol.1262-12560-1-LE.0508201116.